A259249 Number of (n+1)X(7+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0111

1353, 15613, 159168, 1803859, 18970267, 211569948, 2259371001, 24946035357, 268635598788, 2948447364239, 31900157480147, 348917447759080, 3785118935837593, 41318554169121573, 448913396152129472

Offset

1,1

Comments

Column 7 of A259250

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 54

Formula

Empirical recurrence of order 54 (see link above)

Example

Some solutions for n=3
..0..1..1..1..1..1..0..0....1..1..0..0..1..0..0..1....0..1..0..0..1..0..1..0
..0..1..0..0..0..1..0..0....0..1..1..1..1..1..1..1....0..1..1..1..1..1..1..1
..1..1..1..1..1..1..1..1....0..1..0..0..0..1..0..0....0..1..0..1..0..0..0..1
..1..0..0..0..1..0..0..0....1..1..1..1..1..1..1..1....0..1..1..1..0..0..0..1

Crossrefs

Cf. A259250

Sequence in context: A035763 A107559 A056103 * A215865 A172379 A192319

Adjacent sequences: A259246 A259247 A259248 * A259250 A259251 A259252

Keyword

nonn

Author

R. H. Hardin, Jun 22 2015

Status

approved